The registration address of the central environmental engineering company, ltd., is located in room 103, no. 101, dongcheng town park, guangdong province. The registration authority is the market supervision authority of dongcheng city. The legal entity is represented by shao jinhua and operates in the areas of research and development, marketing, installation of: air purification equipment, water purification equipment and accessories; environmental engineering design and construction; environmental pollution management services; sewage management and technical advice; urban waste operations (cleaning, collecting, transporting); pest control services; and marketing: other chemical products (excluding hazardous chemicals). (projects subject to legal approval are not allowed to operate without the approval of the relevant authorities) i'm not sure